«مَاتَ فُلَانٌ، رَحِمَهُ اللَّهُ»
So-and-so died; may God have mercy on him.
“Māta fulān” is an ordinary report. “Raḥimahu Allāh” has a past-tense declarative shape but here is conventionally used as a supplication (دعاء). The two may look similar grammatically while performing different communicative acts.
This case shows why we must distinguish sentence form from intended force. Treating both as merely coordinated descriptions of events can hide the supplicatory purpose. Complete disjunction is therefore not defined by surface morphology alone.